undoLastMove implemented

OOP_2B1_Project/src/backend/Board.java

@@ -1,6 +1,7 @@
 package backend;
 
 import java.util.ArrayList;
+import java.util.LinkedList;
 
 public class Board {
 	public int width;
@@ -12,6 +13,7 @@ public class Board {
 	public int turnNumber;
 	public boolean turnColor;
 	public ArrayList<ArrayList<Boolean>> possibleMoves = new ArrayList<>();
+	public LinkedList<BoardHistory> boardHistory = new LinkedList<>();
 	public Board(int colNum, int lineNum) {
 		this.width = colNum;
 		this.height = lineNum;
@@ -29,7 +31,7 @@ public class Board {
 		}
 		this.turnNumber = 0;
 		this.turnColor = true;
-
+		boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
 	}
 
 	public int getWidth() {
@@ -81,6 +83,7 @@ public class Board {
 				}
 			}
 		}
+		boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
 	}
 
 	public void cleanBoard() {
@@ -91,6 +94,8 @@ public class Board {
 				this.board.get(y).set(x, null);
 			}
 		}
+		this.turnNumber = 0;
+		this.turnColor = true;
 	}
 
 	@Override
@@ -109,16 +114,28 @@ public class Board {
 		}
 		return pieces;
 	}
-
+	
+	
 	public Piece getPiece(int x, int y) {
 		return board.get(y).get(x);
 	}
-
+	
+	public void setBoard(ArrayList<ArrayList<Piece>> boardToSet) {
+		for (int x = 0; x < 8; x++) {
+			for (int y = 0; y < 8; y++) {
+				if (boardToSet.get(y).get(x) != null) {
+					setPiece(x, y, boardToSet.get(y).get(x).getType(),  boardToSet.get(y).get(x).isWhite());
+				}
+			}
+		}
+	}
+	
 	public void movePiece(int x, int y) {
 		if (select) {
 			Piece pieceToMove = this.board.get(this.ym).get(this.xm);
 			this.setPiece(x,y,pieceToMove.getType(),pieceToMove.isWhite());
 			board.get(this.ym).set(this.xm,null);
+			boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
 		}
 	}
 
@@ -174,8 +191,11 @@ public class Board {
 	}
 
 	public void undoLastMove() {
-		//TODO
+		ArrayList<ArrayList<Piece>> boardToSet = boardHistory.get(boardHistory.size() - 2).getBoard();
-
+		this.turnNumber = boardHistory.getLast().getTurnNumber();
+		this.turnColor = boardHistory.getLast().isTurnColor();
+		boardHistory.removeLast();
+		board = boardToSet;
 	}
 
 	public Board(Board board) {

OOP_2B1_Project/src/backend/BoardHistory.java

@@ -0,0 +1,45 @@
+package backend;
+
+import java.util.ArrayList;
+
+public class BoardHistory {
+	public int width;
+	public int height;
+	public ArrayList<ArrayList<Piece>> board = new ArrayList<>();
+	public int turnNumber;
+	public boolean turnColor;
+	public BoardHistory(ArrayList<ArrayList<Piece>> board, int turnNumber, boolean turnColor) {
+		this.board = deepCopyBoard(board);
+		this.turnNumber = turnNumber;
+		this.turnColor = turnColor;
+	}
+	private ArrayList<ArrayList<Piece>> deepCopyBoard(ArrayList<ArrayList<Piece>> original) {
+        ArrayList<ArrayList<Piece>> copy = new ArrayList<>();
+        for (ArrayList<Piece> row : original) {
+            ArrayList<Piece> newRow = new ArrayList<>();
+            for (Piece p : row) {
+                if (p != null) {
+                    newRow.add(PieceCreation.createPiece(p.getX(), p.getY(), p.getType(), p.isWhite()));
+                } else {
+                    newRow.add(null);
+                }
+            }
+            copy.add(newRow);
+        }
+        return copy;
+    }
+	public ArrayList<ArrayList<Piece>> getBoard() {
+		return board;
+	}
+	public int getTurnNumber() {
+		return turnNumber;
+	}
+	public boolean isTurnColor() {
+		return turnColor;
+	}
+	@Override
+	public String toString() {
+		return "BoardHistory [board=" + board + "]";
+	}
+	
+}

OOP_2B1_Project/src/backend/History.java

@@ -0,0 +1,5 @@
+package backend;
+
+public class History {
+
+}